title: Non-radiological method for three-dimensional implant position evaluation using an intraoral scan method.
abstract: BACKGROUND
  This technical innovation presents a method that reproduces the position of a dental implant after insertion without the reuse of X-ray radiation.
  
  
  METHODS
  An implant was inserted into the natural gap between the canines and premolars of three domestic pigs. A Straumann Scanbody was then screwed to the implant, and a digital impression of the jaw segment was made. The scanbody was scanned using a hand-held scanner. This was followed by the radiological detection of implant position on a CBCT. On the computer, the position of the implant was calculated and compared with the radiologically detected position.
  
  
  RESULTS
  The calculated and determined position of the dental implant by the scanner is in good agreement with the radiologically controlled position.
  
  
  CONCLUSIONS
  Evaluating the position of implants using intraoral scans is an easy and radiation-free method of three-dimensional site assessment after superimposition over a three-dimensional data set.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Hanover Medical School, Hanover, Germany.
authors.forename: Constantin
authors.initials: C
authors.lastname: von See
authors.forename: Maximilian E H
authors.initials: ME
authors.lastname: Wagner
authors.forename: Paul
authors.initials: P
authors.lastname: Schumann
authors.forename: Daniel
authors.initials: D
authors.lastname: Lindhorst
authors.forename: Nils-Claudius
authors.initials: NC
authors.lastname: Gellrich
authors.forename: Marcus
authors.initials: M
authors.lastname: Stoetzer
mesh_terms: D000818:Animals; D054893:Cone-Beam Computed Tomography; D015921:Dental Implants; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008334:Mandible / Q000000981:diagnostic imaging / Q000601:surgery; D011857:Radiographic Image Interpretation, Computer-Assisted; D019252:Radiography, Dental, Digital; D013552:Swine
chemical_list: D015921:Dental Implants
keywords: implant position; non-radiological determination; three-dimensional